bomex.x.pl is a domain controlled by two nameservers at sint.pl. They are on different IP networks. Incoming mail for bomex.x.pl is handled by one mailserver at bomex.x.pl themselves. bomex.x.pl has one IP number , which also has a corresponding reverse pointer. mail.bomex.x.pl point to the same IP. mester.pl and polcotex.lodz.pl use this as a nameserver. x.pl, 3d.pl, a4.pl, ids.pl, ddp.pl and at least 56 other hosts share nameservers with this domain. mail.bomex.x.pl are subdomains to this hostname. x.pl is a domain controlled by two nameservers also at sint.pl. They are on different IP networks. bomex.x.pl is hosted on a server in Poland.